This episode examines the endoscopic transnasal approach for accessing the pterygopalatine fossa and infratemporal fossa. We delve into a case series utilizing the endoscopic modified medial maxillectomy (EMMM) and direct approach to the anterior and lateral maxillary sinus (DALMA). The full text of the study "Endoscopic transnasal approach to pterygopalatine fossa and infratemporal fossa: case series utilizing endoscopic modified medial maxillectomy (EMMM)/direct approach to the anterior and lateral part of the maxillary sinus (DALMA)" published in Acta neurochirurgica in 2026 is reviewed. The discussion covers the study design, patient population, key findings, and crucial clinical implications for skull base surgeons. This content is for informational purposes only and does not constitute medical advice. Please consult with a qualified healthcare professional for any medical concerns.